Transducer sensitive to radiation

Abstract

A transducer sensitive to electromagnetic radiation has a substrate with printed conductor runs arranged on both sides, a sensor that is sensitive to radiation glued over a large surface at the front side of the substrate, and of a thermal expansion-compensating "dummy" component connected to the back side of the substrate. The printed conductor runs have connections to one another only in the middle region of the substrate, and otherwise are free of intersections. The basic orientation of the conductor runs can be stellate or right-angled. The absence of conductor run intersections allows gas to escape during the gluing process, so that gas pockets do not form in the adhesive, which can degrade the quality of the adhesive connection.

We claim as our invention: 
     
       1. A radiation-sensitive transducer comprising: a substrate having a surface with a central region and edges spaced a distance from said central region;   a plurality of neighboring printed conductor runs on said surface of said substrate proceeding from said central region to said edges;   a sensor which is sensitive to radiation glued over said conductor runs covering a large area of said surface of said substrate including said central region and at least a portion of said distance; and   said neighboring printed conductor runs comprising connections to each other only in said central region of said substrate, and otherwise having no intersections with each other to leave unimpeded gas escape passages between said neighboring printed conductor runs, said passages proceeding from said central region to said edges of said substrate.   
     
     
       2. A transducer as claimed in claim 1 wherein said printed conductor runs are printed on said surface of said substrate in a stellate arrangement. 
     
     
       3. A transducer as claimed in claim 1 wherein said printed conductor runs are printed on said surface of said substrate in a right-angled arrangement. 
     
     
       4. A transducer as claimed in claim 3 wherein said printed conductor runs comprise segments extending between right-angles, and wherein said printer conductor runs in said segments exhibit angles other than right-angles. 
     
     
       5. A transducer as claimed in claim 3 wherein said substrate has diagonals extending between opposite corners of said substrate, and wherein said printed conductor runs have right-angles disposed substantially on said diagonals. 
     
     
       6. A transducer as claimed in claim 1 wherein said substrate has a further surface, opposite said surface, wherein said plurality of conductor runs on said surface comprise a first set of conductor runs, and said transducer further comprising a second set of conductor runs disposed on said further surface, said first and second sets of conductor runs being oriented symmetrically on the respective surface and further surface of said substrate. 
     
     
       7. A transducer as claimed in claim 6 further comprising a component glued on said further surface of said substrate over a portion of said second set of conductor runs, said component having a thermal expansion behavior substantially equal to thermal expansion behavior of said sensor. 
     
     
       8. A transducer as claimed in claim 6 wherein said first and second sets of conductor runs have substantially a same occupancy and directionality on the respective surface and further surface. 
     
     
       9. A radiation-sensitive transducer comprising: a substrate having a front surface with a central region and edges spaced a distance from said central region;   a plurality of neighboring printed conductor runs on said front surface proceeding from said central region to said edges;   a sensor glued over said conductor runs covering a large area of said front surface of said substrate including said central region and at least a portion of said distance;   a component connected to said back surface of said substrate; and   said plurality of neighboring printed conductor runs on said front surface having connections to each other only in said central region of said substrate, and otherwise having no intersections with each other to leave unimpeded gas escape passages between said neighboring printed conductor runs, said passages proceeding from said central region to said edges of said substrate.